jackson



2 Sheets--Sheet 1.

(No Model.)

J.- JACKSON.

JUMP SEAT GARRIAGF. f

Patented Oct. 10, 1882.,

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A VVITNEESEEI N. PETERS. man. bmqznpnm. wnhmmn. D. Cv

(No Model.) 2 Sheets-Sheet 2..

LT.JACKS01\I.

JUMP SEAT CARRIAGE.

No. 265,606. Patented Oct. 10, 1882.

WITNEEEEEIZ Ntra Santas- ATBNT Fries.

JOHIEL JACKSON, OF FORT ATKINSON, WISCONSIN, ASSIGNOR TO THENORTHWESTERN MANUFACTURING COMPANY, OF SAME PLACE.

JUMP-SEAT CARRIAGE.

SPECIFICATION forming part of Letters Patent No. 265,606, dated October10, 1882.

Application tiled August 17,1882.

To all whom it may concern.-

` Be it known that I, JoHiEL JACKSON, of Fort Atkinson, in thecounty ofJefferson and State ot' Wisconsin, have invented certain Improvements inJump-Seat Carriages, of' which the following is a specification. V

My. invention relates to shifting-seat or jump-seat vehicles; and theimprovement consists in a novel construction and arrangement of parts,whereby the movement of one seat is caused to eiect the simultaneousmovement ofthe other, and whereby also the front seat is automaticallylocked in position without the use ot' special props or braces.

In the accompanying drawings, Figure l represents a longitudinalvertical section of a carriage provided with myiniproved shiftingseats,both seats being shown in position for use; Fig. 2, a similar view, butwith the position ofthe seats changed; Figs. 3 and 4, like views of aslightly modified form ot' shifting device.

Hi'therto many forms and constructions of shifting-seat irons orfittings have been produced or suggested, and in some instances thesupports ofthe two seats have been so connected that the movement of oneseat would cause the other seat to move in unison therewith.

My improvements relate to the latter class particularly, and aredesigned to obviate the necessity of special catches or fastenings toretain the seat in au elevated position, a result which I et't'ect by apeculiar arrangement of the pivots of the intermediate connectionbetween the front and back seat iron.

Referring again to the drawings, A represents a carriage-body, aud B O,respectively, the front and back seats.

The forward seat,B, is provided with a frame or iron, a., at eachend,pivoted at the rear side at b, so that it may fall forward andassume the position shown in Fig. 2, closing up the space beneath therear seat, which at such time stands directly over it, as also shown insaid figure, hiding the irons and presenting the appearance of a curtainor flap.

The rear seat, C, is supported by irons c d, both pivoted to the bodyAat their lower ends, as at e, and to the seat C at their upper ends,

(No model.)

and arranged to swing back and forth about their pivots c in a verticalplane, to carry the seat forward or backward, as desired, the seatresting in either position upon the upper edges of the sides ofthe bodyA.

The iron c, at each end ot' the seat, is formedv with an artn,f,projecting therefrom, which is connected with iron or frameu oftheforward seat by a link, g, pivoted to arm fat h and to frame a at t. Theangle at which arm f projects from bar or iron c is such that when theseats are iu the position indicated in Fig. l the vpivot 7i will beinline with or slightly above a` plane passing through pivots e and t'.Hence it will be seen that as the rear seat rests upon the bodyA, andconsequently cannot move l'arther back, theseat B will be tirmlysupported by link g, which cannot press the arm j'downward, becauseconnected therewith above the line ot' pivots c i, and cannot raise thesame, because bar cis held against further backward movement by the seatO.

lt will thus be seen that when the seats are thrown to the positionindicated in Fig. l the -forward seat will be automatically and tirmlylocked iu its elevated position without the aid of special orindependent props or catches for that purpose.

Vhen it is designed to shift the seats 'it is simply necessary to swingthe rear seat upward and forward, whereupon the arm fwill swingdownward, drawing upon link 'g and turning down the seat B, as shown inFig. 2, the rear seats resting upon the sides of the 4body directly overthe seat B, as shown.

In Figs. 3 and 4 I have illustrated a slightly modified form ot'mechanism embodying the same principle; but I would here remark that theform above described is preferred. In this the seats B and G arerespectively carried by irons a and bars or irons c d, as iu theforegoing; but, instead of forming the armf upon the bar or iron c, Imake the same separate therefrom, in the form ot' aslotted link or bar,j, one end of which is jointed to iron c above its pivot and the otherend connected to link g by pivot h, as in the preceding form. The bar orlink j is bent or curved upward between its ends, as'shown in Figs. 2and 3, and slotted to receive a stud or pin, k, which forms a pivot orfulcrum for the link, upon which said link both slides and turns. Underthis construction and arrangement of parts the move ments of the seatsand their immediate supports are precisely the same as with the otherform described, but the intermediate connections operate in a slightlydiiferent manner.

Assuming the seats to be in the position shown in Fig. 3 and the seat Pto be raised and moved forward, it will be seen that linkj first slidesover the stud or pin k, its forward end swinging upward until the endsof its slot come to the stud or pin k, at which instant the lower end ofsaid link is at its highest point, from which time the link, turningupon the pin or stud, swings backward, drawing with it the link g andthrowing` downward the forward seat, the slotted link j at the sainetime sliding upon the pin t to enable it to maintain its proper relationto the baroriron c, with which, as above seen, it is connected.

In shifting back to the first position the action is simply reversed. 1nthis, as in the pre ceding form', the former seat is sustained by reasonofthe rear seat being held against further backward movement, and thestrain or pressure being applied at a point above the pivots orconnections e and i, and theinability ofthe parts to move in thatdirection.

Other modifications of the saine principle will readily suggestthemselves to the skilled mechanic.

The length of arm f or link j andthe relative movements ofthe parts issuch that the front seat, when turned down, is caused to assume a"ei-tical position, and thus to serve as a curtain or flap for the rearseat drawn forward. This 'eatureis important, since it avoids thenecessity ot' a curtain to the rear seat for this purpose, which curtaininterferes with the convenient operation ofthe seats, and entirelyconceals the mechanism from view from the front.

Having thus described my invention, what I claim isv 1. In combinationwith a front seat pivoted at its rear side to permit it to drop forward,a rear seat carried by pivoted supports arranged to swing in a verticalplane, and an intermediate link or connection between the supports ofthefront and rear seats, having apivot above a line passing through thelower pivot ot' the rear-seat irons and the point of connection with theforward seat when the latter is raised, whereby the forward seat isautomatically locked and held in its upright position without the aidot' special locking devices.

2. In a jump-seat mechanism, the combination of a front-seat frame oriron pivoted at its rear, a rearseat iron pivoted at its lower end, anda link or connection pivoted to the frontseat iron and connected withthe rear-seat iron at a point in line with or slightly above a linepassing through the pivot ot' the rear-seat iron and the point ofconnection with the forward seat.

3. In combina-tion with the iron c, having bent or laterally-projectingarm the iron a, and link y, connecting iron a and arm j', as and for thepurpose set forth.

4. rIhe herein-described jumpseat mechanism, consisting of irons c d,theformer having arm f pivoted at c, iron a, and link g, connected withiron aat point i, and with arm f, the latter point ot' connection beingin line with or JOI'IE L JACKSON.

W'itnesses StB. CORNELL, 1). BULLocK.

